SellWright POS

Last updated September 18, 2026

Terms of Use

SellWright POS (“the Service”) is point-of-sale and inventory software for eyewear retailers. The Website at https://sellwrightpos.com (“the Website”) and the Service are operated by MRX Software LLC. These terms are an agreement between MRX Software LLC and you.

Who is who

  • “We”, “us”, “our” always mean MRX Software LLC, the company that provides the Website and the Service. They never mean a store.
  • Visitor — anyone who browses the Website, reads these pages or requests a demo.
  • Customer — a retail business that subscribes to the Service and holds an account.
  • Authorized User — an owner, manager or associate whom a Customer allows to sign in to its account.
  • Shopper — a person who buys from a Customer's store and may receive a receipt, an order-status message or a marketing message through the Service, or use one of its unsubscribe pages. In the Service itself a store may call these people its clients or customers; in this document that word is reserved for the store.
  • “You” means whichever of those you are. Part A and Part C apply to everyone. Part B applies only to Customers and their Authorized Users, and inside Part B “you” means the Customer together with its Authorized Users; by signing in, an Authorized User accepts these terms on the Customer's behalf.

A Shopper's dealings with a store (its prices, returns, warranties and its use of the Shopper's information) are between the Shopper and that store and are governed by the store's own terms and policies, not by this document. Our Privacy Policy explains how personal data is handled and forms part of these terms. If you do not agree with these terms, please do not use the Website or the Service.

Part A — Using the Website (everyone)

A1. Permitted use

You may browse the Website and use its public pages for their intended purpose: learning about the Service, requesting a demo, reading these documents, signing in if you have an account, and managing message preferences if you are a shopper. You may not scrape the site at volume, probe or test its security, attempt to reach another person's data, interfere with its operation, or use it for anything unlawful.

A2. Demo requests and correspondence

When you request a demo you agree that we may contact you about the Service at the details you gave. We use what you send us only for that conversation, as described in the Privacy Policy. Please do not send confidential information through the form.

A3. Messages you receive from a store

Receipts, order-status notifications and marketing messages are sent by the store you dealt with, using the Service. The store is the sender and decides the content. Every marketing email carries an unsubscribe link and every marketing text accepts STOP; using them takes effect immediately for that store. Unsubscribe pages on this site perform only that action and never sign you into anything or expose anyone else's data.

A4. Content and intellectual property

The Website, the Service, their software, design, text, images and documentation belong to MRX Software LLC and its licensors and are protected by copyright and other laws. Except as these terms allow, you may not copy, modify, distribute, sell or create derivative works from them. Names and logos of third parties belong to their owners.

A5. Links

The Website may link to third-party sites (for example a payment or messaging provider). We do not control them and are not responsible for their content or practices.

Part B — Using the Service (Customers and Authorized Users)

Reminder: in this Part “you” and “your” mean the Customer together with its Authorized Users, and “we” means MRX Software LLC.

B1. The Service

The Service is a multi-store point-of-sale, inventory, lab-order, customer and marketing platform for prescription eyewear retailers, delivered as a web application that can be installed on a device and can continue to ring up sales while offline. We may improve, change or retire features over time; we will give reasonable notice before removing a feature you rely on.

The Service is a retail system, not a clinical one. It records the measurements a lab needs to make glasses, but it does not perform eye exams, validate prescriptions, manage appointments, store diagnoses or process insurance claims, and it must not be used as a medical record. You remain responsible for complying with the professional and health-information rules that apply to your practice.

B2. Accounts and access

  • An owner or manager creates accounts for staff and assigns each person a role and one or more stores. You are responsible for who you give access to and for keeping passwords and register PINs confidential. Tell us promptly at privacy@sellwrightpos.com if you suspect an account is compromised.
  • Each Authorized User must be at least 18 and authorized by the Customer to act for it.
  • Actions taken under an account, including after a PIN switch at a shared register, are attributed to the person who authenticated, and the Customer is responsible for them.

B3. Your data

  • You own the data you and your Authorized Users enter: Shopper records, sales, inventory, suppliers, lab orders and everything derived from them (“Customer Data”). You grant us only the rights needed to host, process, back up, transmit and display it in order to provide and support the Service.
  • Each Customer's data is isolated from every other Customer's. We will not access Customer Data except to provide the Service, to fix a problem you ask us to fix, to keep the Service secure, or as the law requires.
  • You are the controller of your shoppers' personal data. You are responsible for having a lawful basis to collect it, for the accuracy of what you enter, for honoring your shoppers' privacy requests, and for keeping any consent you rely on. The Service gives you tools for this (consent history, export, delete and anonymize) and we will assist with requests you cannot complete yourself.
  • You can export your data at any time. On termination we make it available for a short grace period and then delete it, except where the law requires us to keep records.

B4. Acceptable use

In addition to Part A, you agree not to, and not to let anyone using your accounts:

  • store data you have no right to store, or use the Service for anything unlawful;
  • send unsolicited or deceptive messages, or message anyone who has opted out;
  • reverse engineer, copy, resell or sublicense the Service, or use it to build a competing product;
  • upload malware, or content that infringes someone else's rights.

B5. Email and SMS messaging

The Service lets the Customer send receipts, order-status notifications and marketing campaigns to its own shoppers. The roles are:

  • The Customer is the sender. Every message goes out in the Customer's name, to the Customer's shoppers, with content the Customer wrote or configured. The Customer is responsible for that content and for complying with the laws that apply to it (including, in the United States, the TCPA and CAN-SPAM).
  • MRX Software LLC is the service provider. We supply the tools and the delivery path: email is transmitted through our email provider account, and SMS through the messaging provider account the Customer connects in Settings. We build the compliance safeguards into the Service (unsubscribe links and one-click unsubscribe, STOP and START handling, quiet-hours holds, the postal-address footer, and a consent history checked again at send time). We do not choose recipients or write campaign content.

Because the Customer is the sender, the Customer agrees that it will:

  • send marketing only to shoppers who have opted in through a record kept in the Service, and not import consent it cannot demonstrate;
  • not remove, hide or defeat the unsubscribe links, STOP handling, quiet-hours holds or postal-address footers the Service adds;
  • keep its sender identity, business postal address and messaging-provider account accurate and in good standing.

Because messages travel through infrastructure we operate or connect, we may pause a Customer's messaging if its sends draw complaints, bounces, spam reports or carrier action, and we will tell the Customer why. Shoppers who want to stop receiving a store's messages should use the unsubscribe link or reply STOP (see A3); we do not manage a store's recipient list on its behalf.

B6. Payments and third-party services

Card payments are processed through your own account with our payment provider under its terms; we are not a party to the transaction between you and your shopper and do not hold card numbers. Messaging, email and AI features also rely on third-party providers listed in the Privacy Policy. We choose them with care but are not responsible for their outages, and their terms apply to your use of those features.

B7. AI-assisted features

Supplier invoice reading uses an AI model to propose line items, quantities and costs. Those proposals are suggestions: they can be wrong, and the Service requires a person to review and confirm them before any stock or cost is recorded. You are responsible for that review. Uploaded invoices are sent to the AI provider for processing and are not used to train its models.

B8. Offline use

A register that loses its connection can keep taking cash and check sales, look up the cached catalog, create new clients and print receipts; these are stored on the device and synced when the connection returns. Some things are deliberately unavailable offline (returns, card and gift card tenders, adjustments, reports). A sale synced later that took stock below zero is flagged for your review rather than rejected. You are responsible for the physical security of register devices and for reconnecting them so queued sales sync.

B9. Fees

Where you subscribe to a paid plan, fees, billing periods, usage-based charges (such as SMS or AI invoice pages) and taxes are as stated in your order or plan page. Fees are payable in advance and are non-refundable except where the law requires otherwise. If an account falls past due we may, after notice, place it in read-only mode and eventually suspend it.

B10. Availability and support

We aim to keep the Service available around the clock and perform maintenance with notice where practical, but we do not guarantee uninterrupted operation. We keep regular backups of Customer Data. Support is provided by email during business hours.

B11. Term and termination

You may stop using the Service and close your account at any time. We may suspend or terminate access if you materially breach these terms, if required by law, or if your account is unpaid after notice. B3 (as to data return and deletion), A4 and all of Part C survive termination.

B12. Indemnity

You will defend and indemnify MRX Software LLC against claims arising from Customer Data, from messages sent on your behalf, or from your breach of these terms or of applicable law.

Part C — General terms (everyone)

C1. Disclaimers

The Website and the Service are provided “as is” and “as available”. To the fullest extent permitted by law we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose and non-infringement. We do not warrant that the Service will meet your requirements or that reports, inventory counts, tax calculations or AI suggestions are error-free; Customers are responsible for verifying figures they rely on for accounting, tax or regulatory purposes. Nothing on the Website is professional, medical or legal advice.

C2. Limitation of liability

To the fullest extent permitted by law, MRX Software LLC will not be liable for any indirect, incidental, special, consequential or punitive damages, or for lost profits, revenue, data or goodwill, arising from or related to the Website or the Service, even if advised of the possibility. Our total liability for all claims in any twelve-month period will not exceed the fees you paid us for the Service in that period, or one hundred US dollars if you paid none. Some jurisdictions do not allow these limitations, in which case they apply to the extent permitted. Nothing in these terms limits liability that cannot be limited by law.

C3. Governing law and disputes

These terms are governed by the laws of the Commonwealth of Puerto Rico, United States, without regard to conflict-of-law rules, and disputes will be brought in the courts located there. Nothing here limits either party's right to seek injunctive relief, or any non-waivable consumer rights you have where you live.

C4. Changes to these terms

We may update these terms. We will post the new version here and update the date above; for material changes affecting Customers we will also notify account owners by email at least 30 days before they take effect. Continued use after the effective date is acceptance of the new terms.

C5. Other provisions

  • Customers may not assign these terms without our consent; we may assign them in connection with a merger, acquisition or sale of assets.
  • If any provision is unenforceable the rest remains in effect. A failure to enforce a provision is not a waiver of it.
  • These terms, with the Privacy Policy and any order form, are the entire agreement between you and MRX Software LLC regarding the Website and the Service.

Contact

MRX Software LLC
privacy@sellwrightpos.com